本邦最大なる洞外性鼻茸の1例

　緒言

　Polypの語義に関しては宝珠形の滴状を表すと云われ又軟体動物の海産のものにその内容が相似する点よりこの名称を付けたものとも云われるが現在下垂せる新生物に対して形態を付されたる名称となつている。この新生物は往時には水腫性繊維腫又は膠性繊維腫として真性腫瘍の中に包含されていたのであるがZarnikoは腫瘍全体に多量の液体あるを以て水腫様繊維腫となし以て真性腫瘍と区別した。

　その発生原因について岡田，Zuckerkandl及びHeymannは鼻茸を炎症産物なりと断定しその後一般にこの説を支持するに至つたが近時Marshik, Krainz，藤沢等はAllergie性であると云う見解をなしている。

　SUGAI reports a case of nasal polyp that has been enlarged to an enormous size that occupied the entire nasal cavity on one side and also the postnasal space posteriorly. The patient, a fisherman aged 54, complained of the blockage of the nose which had been present for the last 8 years but, a recent aggravation of symptoms by increase in malodorous, blood tinged nasal discharge, impaired hearing on the affected side, disturbance of vision with pain in that eye. Fearing malignancy, the growth was removed necessarily in parts by Denker operation on the maxillary sinus. However, the sinus mucous membrane proved to be uninvolved in contributing towards formation of this polyp ; the latter is found to be arising from the middle meatus. Histologically the growth is found to be a cystoadenomatous polyp with no signs of malignant changes. After removal of the polyp the patient recovered from all symptoms excepting the hearing loss. The growth weighed 116 grams ; the author claims the largest ever reported in the literature of this country.